204931940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:369

約数の個数: 96

約数和(自身を含む): 476407008

約数和(自身を除く): 271475068

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 61, 68, 82, 85, 122, 164, 170, 205, 241, 244, 305, 340, 410, 482, 610, 697, 820, 964, 1037, 1205, 1220, 1394, 2074, 2410, 2501, 2788, 3485, 4097, 4148, 4820, 5002, 5185, 6970, 8194, 9881, 10004, 10370, 12505, 13940, 14701, 16388, 19762, 20485, 20740, 25010, 29402, 39524, 40970, 42517, 49405, 50020, 58804, 73505, 81940, 85034, 98810, 147010, 167977, 170068, 197620, 212585, 249917, 294020, 335954, 425170, 499834, 602741, 671908, 839885, 850340, 999668, 1205482, 1249585, 1679770, 2410964, 2499170, 3013705, 3359540, 4998340, 6027410, 10246597, 12054820, 20493194, 40986388, 51232985, 102465970, 204931940]

約数ペア:

[(1, 204931940), (2, 102465970), (4, 51232985), (5, 40986388), (10, 20493194), (17, 12054820), (20, 10246597), (34, 6027410), (41, 4998340), (61, 3359540), (68, 3013705), (82, 2499170), (85, 2410964), (122, 1679770), (164, 1249585), (170, 1205482), (205, 999668), (241, 850340), (244, 839885), (305, 671908), (340, 602741), (410, 499834), (482, 425170), (610, 335954), (697, 294020), (820, 249917), (964, 212585), (1037, 197620), (1205, 170068), (1220, 167977), (1394, 147010), (2074, 98810), (2410, 85034), (2501, 81940), (2788, 73505), (3485, 58804), (4097, 50020), (4148, 49405), (4820, 42517), (5002, 40970), (5185, 39524), (6970, 29402), (8194, 25010), (9881, 20740), (10004, 20485), (10370, 19762), (12505, 16388), (13940, 14701)]