30731220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{571}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 104936832

約数和(自身を除く): 74205612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 30, 36, 39, 45, 46, 52, 60, 65, 69, 78, 90, 92, 115, 117, 130, 138, 156, 180, 195, 207, 230, 234, 260, 276, 299, 345, 390, 414, 460, 468, 571, 585, 598, 690, 780, 828, 897, 1035, 1142, 1170, 1196, 1380, 1495, 1713, 1794, 2070, 2284, 2340, 2691, 2855, 2990, 3426, 3588, 4140, 4485, 5139, 5382, 5710, 5980, 6852, 7423, 8565, 8970, 10278, 10764, 11420, 13133, 13455, 14846, 17130, 17940, 20556, 22269, 25695, 26266, 26910, 29692, 34260, 37115, 39399, 44538, 51390, 52532, 53820, 65665, 66807, 74230, 78798, 89076, 102780, 111345, 118197, 131330, 133614, 148460, 157596, 170729, 196995, 222690, 236394, 262660, 267228, 334035, 341458, 393990, 445380, 472788, 512187, 590985, 668070, 682916, 787980, 853645, 1024374, 1181970, 1336140, 1536561, 1707290, 2048748, 2363940, 2560935, 3073122, 3414580, 5121870, 6146244, 7682805, 10243740, 15365610, 30731220]

約数ペア:

[(1, 30731220), (2, 15365610), (3, 10243740), (4, 7682805), (5, 6146244), (6, 5121870), (9, 3414580), (10, 3073122), (12, 2560935), (13, 2363940), (15, 2048748), (18, 1707290), (20, 1536561), (23, 1336140), (26, 1181970), (30, 1024374), (36, 853645), (39, 787980), (45, 682916), (46, 668070), (52, 590985), (60, 512187), (65, 472788), (69, 445380), (78, 393990), (90, 341458), (92, 334035), (115, 267228), (117, 262660), (130, 236394), (138, 222690), (156, 196995), (180, 170729), (195, 157596), (207, 148460), (230, 133614), (234, 131330), (260, 118197), (276, 111345), (299, 102780), (345, 89076), (390, 78798), (414, 74230), (460, 66807), (468, 65665), (571, 53820), (585, 52532), (598, 51390), (690, 44538), (780, 39399), (828, 37115), (897, 34260), (1035, 29692), (1142, 26910), (1170, 26266), (1196, 25695), (1380, 22269), (1495, 20556), (1713, 17940), (1794, 17130), (2070, 14846), (2284, 13455), (2340, 13133), (2691, 11420), (2855, 10764), (2990, 10278), (3426, 8970), (3588, 8565), (4140, 7423), (4485, 6852), (5139, 5980), (5382, 5710)]