28729116

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 86958144

約数和(自身を除く): 58229028

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 23, 26, 34, 36, 39, 46, 51, 52, 68, 69, 78, 92, 102, 117, 138, 153, 156, 157, 204, 207, 221, 234, 276, 299, 306, 314, 391, 414, 442, 468, 471, 598, 612, 628, 663, 782, 828, 884, 897, 942, 1173, 1196, 1326, 1413, 1564, 1794, 1884, 1989, 2041, 2346, 2652, 2669, 2691, 2826, 3519, 3588, 3611, 3978, 4082, 4692, 5083, 5338, 5382, 5652, 6123, 7038, 7222, 7956, 8007, 8164, 10166, 10676, 10764, 10833, 12246, 14076, 14444, 15249, 16014, 18369, 20332, 21666, 24021, 24492, 30498, 32028, 32499, 34697, 36738, 43332, 45747, 46943, 48042, 60996, 61387, 64998, 69394, 73476, 91494, 93886, 96084, 104091, 122774, 129996, 138788, 140829, 182988, 184161, 187772, 208182, 245548, 281658, 312273, 368322, 416364, 422487, 552483, 563316, 624546, 736644, 798031, 844974, 1104966, 1249092, 1596062, 1689948, 2209932, 2394093, 3192124, 4788186, 7182279, 9576372, 14364558, 28729116]

約数ペア:

[(1, 28729116), (2, 14364558), (3, 9576372), (4, 7182279), (6, 4788186), (9, 3192124), (12, 2394093), (13, 2209932), (17, 1689948), (18, 1596062), (23, 1249092), (26, 1104966), (34, 844974), (36, 798031), (39, 736644), (46, 624546), (51, 563316), (52, 552483), (68, 422487), (69, 416364), (78, 368322), (92, 312273), (102, 281658), (117, 245548), (138, 208182), (153, 187772), (156, 184161), (157, 182988), (204, 140829), (207, 138788), (221, 129996), (234, 122774), (276, 104091), (299, 96084), (306, 93886), (314, 91494), (391, 73476), (414, 69394), (442, 64998), (468, 61387), (471, 60996), (598, 48042), (612, 46943), (628, 45747), (663, 43332), (782, 36738), (828, 34697), (884, 32499), (897, 32028), (942, 30498), (1173, 24492), (1196, 24021), (1326, 21666), (1413, 20332), (1564, 18369), (1794, 16014), (1884, 15249), (1989, 14444), (2041, 14076), (2346, 12246), (2652, 10833), (2669, 10764), (2691, 10676), (2826, 10166), (3519, 8164), (3588, 8007), (3611, 7956), (3978, 7222), (4082, 7038), (4692, 6123), (5083, 5652), (5338, 5382)]