28813980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:136

約数の個数: 192

約数和(自身を含む): 96018048

約数和(自身を除く): 67204068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 17, 20, 26, 30, 34, 39, 41, 51, 52, 53, 60, 65, 68, 78, 82, 85, 102, 106, 123, 130, 156, 159, 164, 170, 195, 204, 205, 212, 221, 246, 255, 260, 265, 318, 340, 390, 410, 442, 492, 510, 530, 533, 615, 636, 663, 689, 697, 780, 795, 820, 884, 901, 1020, 1060, 1066, 1105, 1230, 1326, 1378, 1394, 1590, 1599, 1802, 2067, 2091, 2132, 2173, 2210, 2460, 2652, 2665, 2703, 2756, 2788, 3180, 3198, 3315, 3445, 3485, 3604, 4134, 4182, 4346, 4420, 4505, 5330, 5406, 6396, 6519, 6630, 6890, 6970, 7995, 8268, 8364, 8692, 9010, 9061, 10335, 10455, 10660, 10812, 10865, 11713, 13038, 13260, 13515, 13780, 13940, 15990, 18020, 18122, 20670, 20910, 21730, 23426, 26076, 27030, 27183, 28249, 31980, 32595, 35139, 36244, 36941, 41340, 41820, 43460, 45305, 46852, 54060, 54366, 56498, 58565, 65190, 70278, 73882, 84747, 90610, 108732, 110823, 112996, 117130, 130380, 135915, 140556, 141245, 147764, 169494, 175695, 181220, 184705, 221646, 234260, 271830, 282490, 338988, 351390, 369410, 423735, 443292, 480233, 543660, 554115, 564980, 702780, 738820, 847470, 960466, 1108230, 1440699, 1694940, 1920932, 2216460, 2401165, 2881398, 4802330, 5762796, 7203495, 9604660, 14406990, 28813980]

約数ペア:

[(1, 28813980), (2, 14406990), (3, 9604660), (4, 7203495), (5, 5762796), (6, 4802330), (10, 2881398), (12, 2401165), (13, 2216460), (15, 1920932), (17, 1694940), (20, 1440699), (26, 1108230), (30, 960466), (34, 847470), (39, 738820), (41, 702780), (51, 564980), (52, 554115), (53, 543660), (60, 480233), (65, 443292), (68, 423735), (78, 369410), (82, 351390), (85, 338988), (102, 282490), (106, 271830), (123, 234260), (130, 221646), (156, 184705), (159, 181220), (164, 175695), (170, 169494), (195, 147764), (204, 141245), (205, 140556), (212, 135915), (221, 130380), (246, 117130), (255, 112996), (260, 110823), (265, 108732), (318, 90610), (340, 84747), (390, 73882), (410, 70278), (442, 65190), (492, 58565), (510, 56498), (530, 54366), (533, 54060), (615, 46852), (636, 45305), (663, 43460), (689, 41820), (697, 41340), (780, 36941), (795, 36244), (820, 35139), (884, 32595), (901, 31980), (1020, 28249), (1060, 27183), (1066, 27030), (1105, 26076), (1230, 23426), (1326, 21730), (1378, 20910), (1394, 20670), (1590, 18122), (1599, 18020), (1802, 15990), (2067, 13940), (2091, 13780), (2132, 13515), (2173, 13260), (2210, 13038), (2460, 11713), (2652, 10865), (2665, 10812), (2703, 10660), (2756, 10455), (2788, 10335), (3180, 9061), (3198, 9010), (3315, 8692), (3445, 8364), (3485, 8268), (3604, 7995), (4134, 6970), (4182, 6890), (4346, 6630), (4420, 6519), (4505, 6396), (5330, 5406)]