154911940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 96

約数和(自身を含む): 358727040

約数和(自身を除く): 203815100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 61, 76, 82, 95, 122, 163, 164, 190, 205, 244, 305, 326, 380, 410, 610, 652, 779, 815, 820, 1159, 1220, 1558, 1630, 2318, 2501, 3097, 3116, 3260, 3895, 4636, 5002, 5795, 6194, 6683, 7790, 9943, 10004, 11590, 12388, 12505, 13366, 15485, 15580, 19886, 23180, 25010, 26732, 30970, 33415, 39772, 47519, 49715, 50020, 61940, 66830, 95038, 99430, 126977, 133660, 188917, 190076, 198860, 237595, 253954, 377834, 407663, 475190, 507908, 634885, 755668, 815326, 944585, 950380, 1269770, 1630652, 1889170, 2038315, 2539540, 3778340, 4076630, 7745597, 8153260, 15491194, 30982388, 38727985, 77455970, 154911940]

約数ペア:

[(1, 154911940), (2, 77455970), (4, 38727985), (5, 30982388), (10, 15491194), (19, 8153260), (20, 7745597), (38, 4076630), (41, 3778340), (61, 2539540), (76, 2038315), (82, 1889170), (95, 1630652), (122, 1269770), (163, 950380), (164, 944585), (190, 815326), (205, 755668), (244, 634885), (305, 507908), (326, 475190), (380, 407663), (410, 377834), (610, 253954), (652, 237595), (779, 198860), (815, 190076), (820, 188917), (1159, 133660), (1220, 126977), (1558, 99430), (1630, 95038), (2318, 66830), (2501, 61940), (3097, 50020), (3116, 49715), (3260, 47519), (3895, 39772), (4636, 33415), (5002, 30970), (5795, 26732), (6194, 25010), (6683, 23180), (7790, 19886), (9943, 15580), (10004, 15485), (11590, 13366), (12388, 12505)]